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Finding the Fourth Proportional to 61,447.76, 92,220.86 and 28,183.50

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Solution

The fourth proportional to 61,447.76, 92,220.86 and 28,183.50 is: 42,297.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,447.76 : 92,220.86 = 28,183.50 : x
  2. Step 2: Convert to fraction form
    61,447.76/92,220.86 = 28,183.50/x
  3. Step 3: Cross multiply
    61,447.76x = 92,220.86 × 28,183.50
  4. Step 4: Simplify right side
    61,447.76x = 2,599,106,607.81
  5. Step 5: Solve for x
    x = 2,599,106,607.81/61,447.76
  6. Step 6: Final answer
    x = 42,297.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.